Project Overview
In this example, we simulate the sheet hydroforming process using the Abaqus software. The hydroforming process is performed twice in order to achieve the desired final shape of the sheet.
The complete simulation is performed in six steps. During these steps, the sheet undergoes two hydroforming processes, springback, and an annealing process before the second hydroforming operation.
First Hydroforming Process
In Step 1, fluid pressure is applied to the top section of the sheet. The applied pressure causes the sheet to deform and move toward the desired shape.
At the end of Step 1, the deformation of the sheet caused by the hydroforming process can be observed in the Abaqus results.
Before step 1.
End of step 1.
End of step 1.
Springback Process
In Step 2, the fluid pressure is gradually removed. As the pressure decreases, the sheet undergoes a springback process due to the elastic recovery of the material.
Annealing Step
Step 3 is an annealing step. During this step, all stresses and strains in the sheet become zero. This prepares the model for the second hydroforming process.
Annealing step before the second hydroforming process.
Adding Die 3
In Step 4, Die 3 is added to the model. This die is used during the second hydroforming operation to obtain the desired final configuration of the sheet.
Second Hydroforming Process
In Step 5, the hydroforming process is performed for the second time. During this step, fluid pressure is applied to the bottom section of the sheet, causing the sheet to deform again.
The second hydroforming operation allows the sheet to achieve the desired final shape.
Before step 5.
End of step 5.
End of step 5.
Final Springback
In Step 6, the fluid pressure is gradually removed again. The sheet consequently undergoes another springback process.
The final configuration of the sheet after the second hydroforming process and springback can then be investigated using the Abaqus results.
All steps.
What You Will Learn
- How to simulate sheet hydroforming in Abaqus.
- How to perform the hydroforming process twice in one analysis.
- How to apply fluid pressure to the top section of the sheet.
- How to gradually remove fluid pressure to simulate springback.
- How to define an annealing step in Abaqus.
- How to reset the stresses and strains of the sheet to zero.
- How to add Die 3 during the analysis.
- How to apply fluid pressure to the bottom section of the sheet.
- How to investigate the final deformation and springback of the sheet.
- How to use amplitude data for the hydroforming pressure.
Key Features
- Sheet hydroforming simulation in Abaqus.
- Two hydroforming processes.
- Six analysis steps.
- Fluid pressure applied to the top of the sheet in Step 1.
- Springback in Step 2.
- Annealing in Step 3.
- Die 3 added in Step 4.
- Fluid pressure applied to the bottom of the sheet in Step 5.
- Final springback in Step 6.
- Amplitude data included in Excel format.
Project Information
Important information about this project
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